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Standard Series Bore Gages

Dial bore gages are used to quickly inspect hole diameter as well as to detect and measure all kinds of bore conditions such as taper, bell-mouth and out-of roundness. They in no way depend upon a sense of "feel" as is the case with non-indicating types. Machine operators find our bore gages to be particularly useful in making quick, accurate adjustments to bring work-pieces within tolerance. In this application, the reading on the dial tells the exact amount of tool correction needed and eliminates uncertain, "creep-up" methods of making adjustments.

The reliable accuracy for which these standard bore gages are known is due to a delicately responsive gaging plunger and a positive centralizing mechanism that correctly positions the gage in the bore. After setting to a master, diametral measurements are obtained by rocking the gage in the bore and noting the greatest deflection of the dial hand.

The regular type dial bore gage is intended for the usual situation where there is ample space in front of the bore opening. For gaging in restricted spaces, or to facilitate reading where other limitations are imposed, additional standard bore gage styles are available. If your application require additional range extension, please contact us for quotation.

Standard Style Bore Gage Features

  • Available with ISO 17025 certification.
  • Comfortable & ergonomic well balanced handle, can be removed to gain clearance in restricted areas.
  • Optional shock proof dial indicator with .001", .0005", .0001", or .00005" (.001mm, .002mm, .01mm) resolution available in single or multi revolution models. Available with Dorsey's digital housings for use with most digital indicator models.
  • Precision machined aluminum dial unit housing.
  • Precisely machined cast phosphor bronze gaging head for sensitivity and durability.
  • Stainless steel bore gage extension tubing in a wide variety of standard and special lengths.
  • Carbon fiber or stainles steel extra length extension tubing up to 144".
  • Thermally insulated high impact resistant shield protects extension tubing.
  • Unique "tandem" centralizer uses matched and lapped components to ensure accurate and repeatable centralization.
  • Replacable contacts available in steel, carbide or diamond.
  • Proven bell crank transfer is accurate and linear over its entire range.
  • Precisely machined cast phosphor bronze gaging head for sensitivity and durability.
  • All bore gage sizes utilize the same dial unit housing for extreme versality.

Additional bore gage styles designed especially for applications where space restrictions or gaging positions are not suitable to use of standard style bore gages housing.

Title Sort descending Graduation Gaging Travel Range
No 2 Bore Gage DS-B1-10102 Bore Gage .00005" .025" 1.00 - 1.53", 25.4 - 38.9mm
No 3 Bore Gage DS-B1-10103 Bore Gage .00005" .025" 1.50 - 2.16", 38.1 - 54.8mm
No 4 Bore Gage DS-B1-10104 Bore Gage .00005" .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-10105 Bore Gage .00005" .025" 3.09 - 6.13", 78.5- 156mm
No 6 Bore Gage DS-B1-10106 Bore Gage .00005" .030" 6.00 - 12.13", 152.5 - 308.0mm
DS-B1-10107 Bore Gage .00005" .030" 10.00 - 24.00", 254 - 610mm
No 8 Bore Gage DS-B1-10108 Bore Gage .00005" .030" 21.00 - 36.00", 533 - 915mm
No 2 Bore Gage DS-B1-10112 Bore Gage .00025" .025" 1.00 - 1.53", 25.4 - 38.9mm
No 3 Bore Gage DS-B1-10113 Bore Gage .00025" .025" 1.50 - 2.16", 38.1 - 54.8mm
No 4 Bore Gage DS-B1-10114 Bore Gage .00025" .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-10115 Bore Gage .00025" .025" 3.09 - 6.13", 78.5- 156mm
No 6 Bore Gage DS-B1-10116 Bore Gage .00025" .030" 6.00 - 12.13", 152.5 - 308.0mm
DS-B1-10117 Bore Gage .00025" .030" 10.00 - 24.00", 254 - 610mm
No 8 Bore Gage DS-B1-10118 Bore Gage .00025" .030" 21.00 - 36.00", 533 - 915mm
DS-B1-10122 Bore Gage 0.001mm .025" 1.00 - 1.53", 25.4 - 38.9mm
DS-B1-10123 Bore Gage 0.001mm .025" 1.50 - 2.16", 38.1 - 54.8mm
DS-B1-10124 Bore Gage 0.001mm .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-10125 Bore Gage 0.001mm .025" 3.09 - 6.13", 78.5- 156mm
DS-B1-10126 Bore Gage 0.001mm .030" 6.00 - 12.13", 152.5 - 308.0mm
DS-B1-10127 Bore Gage 0.001mm .030" 10.00 - 24.00", 254 - 610mm
No 8 Bore Gage DS-B1-10128 Bore Gage 0.001mm .030" 21.00 - 36.00", 533 - 915mm
No 2 Bore Gage DS-B1-11102 Bore Gage .0001" .025" 1.00 - 1.53", 25.4 - 38.9mm
No 3 Bore Gage DS-B1-11103 Bore Gage .0001" .025" 1.50 - 2.16", 38.1 - 54.8mm
No 4 Bore Gage DS-B1-11104 Bore Gage .0001" .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-11105 Bore Gage .0001" .025" 3.09 - 6.13", 78.5- 156mm
DS-B1-11106 Bore Gage .0001" .030" 6.00 - 12.13", 152.5 - 308.0mm
No 7 Bore Gage DS-B1-11107 Bore Gage .0001" .030" 10.00 - 24.00", 254 - 610mm
DS-B1-11108 Bore Gage .0001" .030" 21.00 - 36.00", 533 - 915mm
No 2 Bore Gage DS-B1-12102 Bore Gage .0001" .025" 1.00 - 1.53", 25.4 - 38.9mm
DS-B1-12102M Bore Gage .0001", .002mm .025" 1.00 - 1.53", 25.4 - 38.9mm
DS-B1-12103 Bore Gage .0001" .025" 1.50 - 2.16", 38.1 - 54.8mm
DS-B1-12103M Bore Gage .0001", .002mm .025" 1.50 - 2.16", 38.1 - 54.8mm
No 4 Bore Gage DS-B1-12104 Bore Gage .0001" .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-12104M Bore Gage .0001", .002mm .025" 2.12 - 3.13", 54.0 - 79.5mm
DS-B1-12105 Bore Gage .0001" .025" 3.09 - 6.13", 78.5- 156mm
DS-B1-12105M Bore Gage .0001", .002mm .025" 3.09 - 6.13", 78.5- 156mm
No 6 Bore Gage DS-B1-12106 Bore Gage .0001" .030" 6.00 - 12.13", 152.5 - 308.0mm
DS-B1-12106M Bore Gage .0001", .002mm .030" 6.00 - 12.13", 152.5 - 308.0mm
No 7 Bore Gage DS-B1-12107 Bore Gage .0001" .030" 10.00 - 24.00", 254 - 610mm
DS-B1-12107M Bore Gage .0001", .002mm .030" 10.00 - 24.00", 254 - 610mm
No 8 Bore Gage DS-B1-12108 Bore Gage .0001" .030" 21.00 - 36.00", 533 - 915mm
DS-B1-12108M Bore Gage .0001", .002mm .030" 21.00 - 36.00", 533 - 915mm
No 2 Bore Gage DS-B1-13102 Bore Gage .0005" .025" 1.00 - 1.53", 25.4 - 38.9mm
No 3 Bore Gage DS-B1-13103 Bore Gage .0005" .025" 1.50 - 2.16", 38.1 - 54.8mm
No 4 Bore Gage DS-B1-13104 Bore Gage .0005" .025" 2.12 - 3.13", 54.0 - 79.5mm

Bore Gage Dust Cap Size 2-6

Part Number
DS-B0-84725

Bore Gage Dust Cap Size 6 HD

Part Number
DS-B0-84731

#2BG Storage Box

Part Number
DX2-89952

#3BG Storage Box

Part Number
DX2-89953

#4BG Storage Box

Part Number
DX2-89954

#5BG Storage Box

Part Number
DX2-89955

#6BG Storage Box

Part Number
DX2-89956

BG Combo Kit Storage Box

Part Number
DX2-89927

Right Angle Style Bore Gage

Right Angle Style 2

Description

For jig boring or jig grinding machine operations; designed to avoid disturbing the machine tool setup. Also for restricted areas or applications that might be hazardous to the operators' hand.

Vertical Style Bore Gage

Vertical Style 3

Description

For vertical axis bores at eye level; best choice for bench inspection applications.

Perpendicular Style Bore Gage

Perpendicular Style 4

Description

For vertical axis bores below eye level.

Pistol Grip Style Bore Gage

Pistol Grip Style 5

Description

For limited access applications.

Flush Mount Style Bore Gage

Flush Mount Style 7

Description

For limited access applications.

Bore Gage Extension

DX2-8100503 Length Extension

Part Number
DX2-8100503
Length
3"

Bore Gage Extension

DX2-8100504 Length Extension

Part Number
DX2-8100504
Length
4"

Bore Gage Extension

DX2-8100505 Length Extension

Part Number
DX2-8100505
Length
5"

Bore Gage Extension

DX2-8100506 Length Extension

Part Number
DX2-8100506
Length
6"

Bore Gage Extension

DX2-8100508 Length Extension

Part Number
DX2-8100508
Length
8"

Bore Gage Extension

DX2-8100510 Length Extension

Part Number
DX2-8100510
Length
10"

Bore Gage Extension

DX2-8100512 Length Extension

Part Number
DX2-8100512
Length
12"

Bore Gage Extension

DX2-8100514 Length Extension

Part Number
DX2-8100514
Length
14"

Bore Gage Extension

DX2-8100516 Length Extension

Part Number
DX2-8100516
Length
16"

Bore Gage Extension

DX2-8100518 Length Extension

Part Number
DX2-8100518
Length
18"

Bore Gage Extension

DX2-8100524 Length Extension

Part Number
DX2-8100524
Length
24"

Bore Gage Extension

DX2-8100530 Length Extension

Part Number
DX2-8100530
Length
30"

Bore Gage Extension

DX2-8100536 Length Extension

Part Number
DX2-8100536
Length
36"

DBM-250 Setmaster

DBM-250 Adjustable Bore Gage Setmaster

Part Number
DBM-250
Range
.25"-1"
Mastering cycle repeatability
within .000050"
Setting cycle repeatability
+/- .00010"
Ring correlation accuracy
+/- .00010"

DBM-1000 Setmaster

DBM-1000 Adjustable Bore Gage Setmaster

Part Number
DBM-1000
Range
1"-6"
Mastering cycle repeatability
within .000050"
Setting cycle repeatability
+/- .00010"
Ring correlation accuracy
+/- .00010"

DBM-6000 Setmaster

DBM-6000 Adjustable Bore Gage Setmaster

Part Number
DBM-6000
Range
6"-13"
Mastering cycle repeatability
within .000050"
Setting cycle repeatability
+/- .00010"
Ring correlation accuracy
+/- .00010"

DBM-12000 Setmaster

DBM-12000 Adjustable Bore Gage Setmaster

Part Number
DBM-12000
Range
12"-24"
Mastering cycle repeatability
within .000050"
Setting cycle repeatability
+/- .00010"
Ring correlation accuracy
+/- .00010"

DBM-24000 Setmaster

DBM-24000 Adjustable Bore Gage Setmaster

Part Number
DBM-24000
Range
20"-36"
Mastering cycle repeatability
within .000050"
Setting cycle repeatability
+/- .00010"
Ring correlation accuracy
+/- .00010"